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Ivory Alumina Ceramic Washer 95% AL2O3 Machining Ceramic Material

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Ivory Alumina Ceramic Washer 95% AL2O3 Machining Ceramic Material

Name: Ivory Alumina Ceramic Washer 95 AL2O3 Machining Ceramic Material
Brand: Antaeus
Price: 1 USD

Brand Name : Antaeus

Model Number : AD-B019

Certification : /

Place of Origin : Hunan,China

MOQ : Negotiation

Price : Negotiation

Payment Terms : T/T or Negotiation

Supply Ability : Full Supply

Delivery Time : 15-45 days

Packaging Details : Inner vacuum packaging, outside carton.

Product Name : Metallized Alumina Ceramic Rings / Ceramic Insulators for Battery

Material : Alumina (Aluminum Oxide, Al2O3)

Insulation Resistance : 1000M Ω（1000VDC)

High Light : Alumina Ceramic Rings / Metallized Ceramic Insulators / Electrical Ceramic Components

Thermal Shock Resistance room temperature to 850C : will not burst or leak after five operations

Max. Use Temp. : 1650℃

ROHS Hardness : ≥89

Flexural strength : 550 Mpa(psix10^3)

Compressive Strength : 2600(377) Mpa(psix10^3)

Coefficient of thermal expansion : 8.2 X10^-6/℃

Coefficient of thermal conductivity : 17-30.4 W/m.K

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Alumina Seal Ceramic Rings / Industry Insulation Rings

1. Description:

Processing of ceramic seal rings:

Molding --- After the base has been prepared, the actual formation of the ceramic components begins. There are several forming processes that manufacturers use to create ceramic parts. These include processes such as slip casting, pressing, extrusion, and injection molding.
For mass production, slip casting works quite well. It’s especially well-suited for complex shapes, thin walls, and sanitary ware. Pressing methods like hot pressing and hot isostatic pressing work best with advanced ceramics. Molding processes like extrusion and injection molding work best in the creation of more simple ceramic mold parts, like pipes and tubes.

2. Feature Advantages:

1) Refractory, High Temperature Resistance, Maximum Used Temperature: 1800 ºC (3272ºF)
2) Hardness Strength, Wear Resistance Up To Mohz 9.0 ; HRA 80-90
3) High Voltage, Good Insulation Performance ,Electrical Resistivity Up To 10∧14 Ohm.Cm
4) High Polished Surface Up To Rz0.8(Ra0.1)
5) Superior Mechanical Strength, MAX 10 MPa.m1/2 Fracture toughness
6) Pressure Resistance, Max 2300MPa compressive strength
7) Anti-High Corrosion Resistance, Such As Acid Alkali Resistance
8) Long Service Life
9) Other excellent property

3. Material Features / Properties:

Composite	(wt %)	99%	99.5%	99.8%
Color		White or Ivory	White or Ivory	White or Ivory
Density	g/cm 3	3.82	3.9	3.92
Hardness	HRA	83	85	85
Flexural Strength	Mpa (psi*10 3 )	375	386	381

4. Technical Parameters:

Technical Parameters of Ceramics
Items	Test Conditions	Unit or Symbol	99% AL2O3	95% AL2O3	90% AL2O3	Zirconia	Steatite	Silicon Carbide
Volume Density	--	g/cm3	≥3.70	≥3.62	≥3.40	≥5.90	≥2.60	≥3.08
Tightness	--	Pa·m³/s	≤1.0×10-11	≤1.0×10-11	≤1.0×10-11	-	-	-
Liquid Permeability	--	--	Pass	Pass	Pass		Pass	-
Flexural Strength	-	MPa	≥300	≥280	≥230	≥1100	≥120	≥400
Elastic Modulus	-	GPa	-	≥280	≥250	≥220	-	400
Poisson Ratio	-	-	-	0.20～0.25	0.20～0.25	-	-	-
Thermal Shock Resistance	800℃( Room Temperature) Cycle: 10 times		Pass	Pass	Pass	-	-	-
Coefficient of Linear Expansion	20℃～100℃	×10-6 K-1	-	-	-		≤8	-
	20℃～500℃	×10-6 K-1	6.5～7.5	6.5～7.5	6.5～7.5	6.5～11.2	-	-
	20℃～800℃	×10-6 K-1	6.5～8.0	6.5～8.0	6.3～7.3		-	4
	20℃～1200℃	×10-6 K-1	-	7.0～8.5	-	-	-	-
Coefficient of Thermal Conductivity	20℃	W/(m·k)	-	-	-	-	-	90～110
Coefficient of Thermal Conductivity	1000℃	W/(m·k)	-	-	-	-	-	90～110
Dielectric Constant	1MHz 20℃	-	9.0～10.5	9.0～10	9.0～10	-	≤7.5	-
	1MHz 50℃	-	-	9.0～10	-	-	-	-
	10GHz 20℃	-	9.0～10.5	9.0～10	9.0～10	-	-	-
Volume Resistivity	100℃	Ω·cm	≥1.0×1013	≥1.0×1013	≥1.0×1013	-	≥1.0×1012	-
	300℃		≥1.0×1013	≥1.0×1010	≥1.0×1013	-	-	-
	500℃		≥1.0×109	≥1.0×108	--	-	-	-
Disruptive Strength	D.C	kV/mm	≥17	≥15	≥15	-	≥20	-
Chemical Durability	1:9HCl	mg/c㎡	≤0.7	≤7.0	-	-	-	-
Chemical Durability	10%NaOH	mg/c㎡	≤0.1	≤0.2	-	--	-	-
Grain Size	-	μm	-	3~12	-	-	-	-

5. Process Flows:

Formulating --- Granulating --- Forming --- Sintering --- Grinding --- Printing --- Nickel Plating --- Assembing --- Brazing --- Inspecting --- Packing